Updates first dataflow docs

[skrawcz]

They weren't up to date. Also added note about disabling plugins.

Changes

• docs

How I tested this

• locally

Notes

Checklist

• PR has an informative and human-readable title (this will be pulled into the release notes)
• Changes are limited to a single goal (no scope creep)
• Code passed the pre-commit check & code is left cleaner/nicer than when first encountered.
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future TODOs are captured in comments
• Project documentation has been updated if adding/changing functionality.

[ellipsis-dev]

👍 Looks good to me! Reviewed everything up to 9f6a239 in 5 seconds

More details

• Looked at 54 lines of code in 1 files
• Skipped 0 files when reviewing.
• Skipped posting 2 drafted comments based on config settings.

1. docs/get-started/your-first-dataflow.rst:109

• Draft comment:
  Consider providing a complete example for dr.visualize_execution or remove the comment if not intended for use.
• Reason this comment was not posted:
  Confidence changes required: 50%
  The comment on line 109 suggests using a PNG file for visualization, but the code is commented out. It would be more helpful to provide a complete example or remove the comment if it's not intended to be used.

2. docs/get-started/your-first-dataflow.rst:133

• Draft comment:
  Consider adding this note about disabling autoloading of extensions to the Sphinx documentation under docs/how-tos/extensions-autoloading.rst for better visibility and reference.
• Reason this comment was not posted:
  Confidence changes required: 50%
  The note about disabling autoloading of extensions is useful and should be documented in the appropriate section for future reference.

Workflow ID: wflow_YGIAClWhmRvWeiSM

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